This black aluminium window keeper snib lock is designed for double-hung aluminium windows requiring both key security and convenient internal snib operation. The wide-base design provides a stable, solid fit on standard aluminium window frames, while the snib lever allows quick locking or release from inside.When additional security is needed, the key-lock mechanism engages to prevent external tampering.Built from die-cast zinc with a hard-wearing black powder-coated finish, it delivers smooth operation, lasting durability, and a neat, modern appearance.All locks are keyed alike, so a single key works across every window lock in your set. Dimensions:• Width: 64.4 mm• Base width: 20 mm• Base height: 11.3 mm• Hole distance: 40 mm (centre-to-centre)• Keeper height: 31 mm Includes:• 1 × Black keyed-alike keeper snib lock• 1 × Key• Screws and fixings